Multilayer Substrate With Electromagnetic Movable Hollow Core

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Solution Overview

Problem

Existing multilayer substrates with mounted electronic components do not allow for movement within the hollow portion, limiting their functionality and requiring complex manufacturing techniques like semiconductor and MEMS technology.

Innovation Solution

A multilayer substrate design incorporating a substrate body, a hollow portion, a movable body, a coil, a protrusion, and a waveguide, which enables movement of a magnet or yoke within the hollow portion without relying on semiconductor or MEMS technology, using conductive and magnetic materials for interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a movable unit is to be enabled inside the hollow portion, then functionality is improved, but manufacturing complexity increases when using semiconductor or MEMS technology

Engineering Contradiction:

ImprovefunctionalityVSAvoidmanufacturing complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces complex semiconductor or MEMS manufacturing processes with a simpler mechanical approach using a coil and magnetic body system. The movable unit is actuated through electromagnetic interaction between a coil and magnetic body, eliminating the need for sophisticated semiconductor fabrication or MEMS technology while achieving the desired movement functionality inside the hollow portion.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the manufacturing approach from high-precision semiconductor/MEMS processes to a more accessible method involving coil winding and magnetic body placement. By altering the manufacturing parameters and techniques, the patent achieves movable unit functionality with reduced manufacturing complexity and broader accessibility.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If a movable unit is implemented using conventional techniques, then movement capability is achieved, but power consumption and heat generation increase

Engineering Contradiction:

Improvemovement capabilityVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent replaces power-intensive conventional actuation mechanisms with an electromagnetic system using a coil and magnetic body. This substitution reduces power consumption and heat generation by utilizing efficient electromagnetic interaction rather than traditional mechanical or high-power actuation methods, while maintaining the movement capability of the unit inside the hollow portion.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If electronic components are mounted in the hollow portion, then functionality is improved, but the components cannot be moved

Engineering Contradiction:

ImprovefunctionalityVSAvoidmovability

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent transforms the hollow portion from a static mounting space into a dynamic environment where a movable unit can be actuated. By introducing a coil and magnetic body system, the patent enables the movable unit to move inside the hollow portion while maintaining its functional capabilities, thus achieving both functionality and movability simultaneously.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent replaces the static mounting approach with an electromagnetic actuation system. The movable unit, comprising a magnetic body and conductive protrusion, can be dynamically positioned inside the hollow portion through electromagnetic interaction, enabling both functionality and movability that were previously mutually exclusive.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables movement of a movable unit within the hollow portion, simplifying manufacturing and reducing power consumption and heat generation, while maintaining electrical connectivity through switch conductor patterns.

Implementation Method 1

a coil provided around the hollow portion in the substrate body

Methodology Applied

Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

using conductive and magnetic materials for interaction

Methodology Applied

Scientific EffectElectromagnetic interaction: Electromagnetic Induction

Implementation Method 3

a protrusion provided on a lower surface of the movable body and formed of a conductive material

Methodology Applied

Scientific EffectConductive material interaction: Conduction (electrical)

Data Source

PatentUS20260088210A1Multilayer substrate

Publication Date: 2026.03.26 MITSUBISHI ELECTRIC CORP

AI summary

A multilayer substrate includes: a substrate body formed of resin or ceramic; a hollow portion provided inside the substrate body; a magnet provided inside the hollow portion; and a coil provided around the hollow portion in the substrate body.